Between 1892 and 1954, over 12 million immigrants passed through Ellis Island, the United States' busiest federal immigration station. Located in New York Harbor, it served as the primary entry point for Europeans seeking a new life. The reasons for processing there were multifaceted:
Ellis Island centralized the inspection of arrivals, checking backgrounds, health, and eligibility.
Doctors screened for infectious diseases, disabilities, and mental health issues; those who passed proceeded.
Officials verified documents (passports, visas), identities, and occupations.
After 1921, national-origin quotas were applied, limiting admissions from certain countries.
From 1917, immigrants had to pass a literacy test in their native language (later abolished).
Those deemed inadmissible—due to health, legal, or quota reasons—were detained and returned.
Admitted immigrants received food, lodging, and assistance arranging onward travel.
Ellis Island's rigorous processes shaped the demographic fabric of modern America.